Wednesday, December 28, 2011

Some little issues holding things up

1) I can't get the power valve motor to move when I turn the key on.
2) The wiring loom has been altered in a way that has to do with the engine kill switch and the front brake switch.

But I couldn't resist just having a quick mock-up of what it is going to look like with the fairings on.
New tyres on today. Bridgestone BT-090's. NZ$400. 110/70/17 front and 150/60/18 rear.



I'm not too sure that I can live with the Chinese fairings long term but they will do for now.

Monday, December 26, 2011

Carbies assembled

Today I assembled a set of carbies from a big bunch of bits.
That's it.



I discovered that I am missing a few parts:
Needed: A small wiring loom for the gauges

Needed: The rear seat release latch

Sunday, December 25, 2011

Assembly of the entire bike

This week I have spent the best part of 4 days working on assembling the NSR250.
It has taken a lot longer than I anticipated and there is still quite a bit left to do.

At the start of the week I only had the swingarm attached to the frame, and a complete engine.
Now I have the motor in the frame, and the subframe on, with front and rear suspension fitted along with triple clamps. I pulled the front shocks apart and checked them out. The rear shock has already been reconditioned by Goudenz Gisler of Tuakau. I have zip tied the shock remote reservoir in place.
The wiring loom is about 90% connected up.
The powervalve motor and cables are assembled but need setting.
The brakes are on, but no front mudguard yet.
Handlebars and switch gear are on.

I spent a lot of time cleaning and lubricating everything as I went. Very time consuming.

I need to attach the carburetors, airbox, water tank, two-stroke oil tank, drive chain, radiator, pipes, mufflers, fairings and tank. That might not sound like much, but it will take me a while to check over the carbs and I'm not yet sure if I have all the radiator hoses.
I also need to assemble the tank so that it is 1 piece.
I still haven't assembled the headlight, screen and indicators into the front fairing.
I am waiting on a set of Bridgestone BT090's to arrive.
I do not have the bolts needed to attach a lot of the fairings.
I appear to have misplaced the brake/tail lights.

It is Christmas day: I started working on the bike at 7am and stopped at 9pm. Pretty sad huh.
Looks like Boxing Day may be a similar thing.
Anyway, here are some pics:
















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Monday, December 5, 2011

NSR250 Conrod Kits

I got a package in the mail today;  4 x NSR250 conrod kits.


Clearly, the crank pin is not needed, but I failed to specify that. D'oh.

These new conrods weigh 156 grams. The standard Honda conrod weighs 155 grams.
These new conrods are a bit thicker in the stem near the small end, so I suspect (I can't say for sure) they will be able to handle a bit more stress due to higher revs/heavier piston/more power etc.

The big end bearing weighs 25g
The small end bearing weighs 12g
The thrust washers weigh 6g each (total of 12 grams)
This gives a total of 205g

The big end pin weighs 176g but is not needed as it is an integral part of the crank web.

I am actually going to sell a pair of these to anyone who wants them. NZ$340 + freight each. (NZ$680 for the pair) Not cheap I know. That includes bearings, washers and bid end pin.


Now if only my man making the 2 central crankshaft webs wasn't quite so busy!
Patience.

In due course will be revealing the source for these NSR conrods ( <--click) on the new forum, just to give that site a bit more exposure.